Root Dumb wallpaper question

[thecarlsoncrew]

I'm currently using a wallpaper on my phone that was originally from a picture file that I manually copied onto the SD card and placed in a folder I specifically created for such background wallpapers. I don't want to lose the wallpaper, but as far as I can tell that file is no longer in the backgrounds folder, so I'm guessing that if I change the background or theme on my phone, it will disappear. Obviously, the file is somewhere on the phone since the background remains in use, but I can't find it.

So...can someone tell me how to determine the location of the file currently being used as the background wallpaper?

Thanks!

PS - I'm running CM10.1.3.

 

[Thom]

To facilitate answers I moved your question to where root-related questions are discussed.

... Thom